Title: [184003] trunk

Diff

Modified: trunk/Source/WTF/ChangeLog (184002 => 184003)


--- trunk/Source/WTF/ChangeLog	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WTF/ChangeLog	2015-05-08 19:01:03 UTC (rev 184003)
@@ -1,3 +1,16 @@
+2015-05-08  Commit Queue  <[email protected]>
+
+        Unreviewed, rolling out r183996.
+        https://bugs.webkit.org/show_bug.cgi?id=144806
+
+        ASan detected use-after free (Requested by ap on #webkit).
+
+        Reverted changeset:
+
+        "Remove convenience constructors for TextRun"
+        https://bugs.webkit.org/show_bug.cgi?id=144752
+        http://trac.webkit.org/changeset/183996
+
 2015-05-08  Myles C. Maxfield  <[email protected]>
 
         Remove convenience constructors for TextRun

Modified: trunk/Source/WTF/wtf/text/StringView.h (184002 => 184003)


--- trunk/Source/WTF/wtf/text/StringView.h	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WTF/wtf/text/StringView.h	2015-05-08 19:01:03 UTC (rev 184003)
@@ -58,7 +58,6 @@
 
     StringView(const String&);
     StringView(const StringImpl&);
-    StringView(const StringImpl*);
     StringView(const LChar*, unsigned length);
     StringView(const UChar*, unsigned length);
 
@@ -272,18 +271,6 @@
         initialize(string.characters16(), string.length());
 }
 
-inline StringView::StringView(const StringImpl* string)
-{
-    if (!string)
-        return;
-
-    setUnderlyingString(string);
-    if (string->is8Bit())
-        initialize(string->characters8(), string->length());
-    else
-        initialize(string->characters16(), string->length());
-}
-
 inline StringView::StringView(const String& string)
 {
     setUnderlyingString(string.impl());

Modified: trunk/Source/WebCore/ChangeLog (184002 => 184003)


--- trunk/Source/WebCore/ChangeLog	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/ChangeLog	2015-05-08 19:01:03 UTC (rev 184003)
@@ -1,3 +1,16 @@
+2015-05-08  Commit Queue  <[email protected]>
+
+        Unreviewed, rolling out r183996.
+        https://bugs.webkit.org/show_bug.cgi?id=144806
+
+        ASan detected use-after free (Requested by ap on #webkit).
+
+        Reverted changeset:
+
+        "Remove convenience constructors for TextRun"
+        https://bugs.webkit.org/show_bug.cgi?id=144752
+        http://trac.webkit.org/changeset/183996
+
 2015-05-08  Eric Carlson  <[email protected]>
 
         [Mac] Playback target clients do not unregister on page reload

Modified: trunk/Source/WebCore/css/CSSPrimitiveValue.cpp (184002 => 184003)


--- trunk/Source/WebCore/css/CSSPrimitiveValue.cpp	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/css/CSSPrimitiveValue.cpp	2015-05-08 19:01:03 UTC (rev 184003)
@@ -1051,7 +1051,7 @@
         StringBuilder result;
         result.reserveCapacity(6 + m_value.string->length());
         result.appendLiteral("attr(");
-        result.append(String(m_value.string));
+        result.append(m_value.string);
         result.append(')');
 
         return result.toString();

Modified: trunk/Source/WebCore/platform/graphics/StringTruncator.cpp (184002 => 184003)


--- trunk/Source/WebCore/platform/graphics/StringTruncator.cpp	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/platform/graphics/StringTruncator.cpp	2015-05-08 19:01:03 UTC (rev 184003)
@@ -194,7 +194,7 @@
 
 static float stringWidth(const FontCascade& renderer, const UChar* characters, unsigned length, bool disableRoundingHacks)
 {
-    TextRun run(StringView(characters, length));
+    TextRun run(characters, length);
     if (disableRoundingHacks)
         run.disableRoundingHacks();
     return renderer.width(run);

Modified: trunk/Source/WebCore/platform/graphics/TextRun.h (184002 => 184003)


--- trunk/Source/WebCore/platform/graphics/TextRun.h	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/platform/graphics/TextRun.h	2015-05-08 19:01:03 UTC (rev 184003)
@@ -52,9 +52,9 @@
 
     typedef unsigned RoundingHacks;
 
-    explicit TextRun(StringView text, float xpos = 0, float expansion = 0, ExpansionBehavior expansionBehavior = AllowTrailingExpansion | ForbidLeadingExpansion, TextDirection direction = LTR, bool directionalOverride = false, bool characterScanForCodePath = true, RoundingHacks roundingHacks = RunRounding | WordRounding)
-        : m_text(text)
-        , m_charactersLength(text.length())
+    explicit TextRun(StringView s, float xpos = 0, float expansion = 0, ExpansionBehavior expansionBehavior = AllowTrailingExpansion | ForbidLeadingExpansion, TextDirection direction = LTR, bool directionalOverride = false, bool characterScanForCodePath = true, RoundingHacks roundingHacks = RunRounding | WordRounding)
+        : m_text(s)
+        , m_charactersLength(s.length())
         , m_tabSize(0)
         , m_xpos(xpos)
         , m_horizontalGlyphStretch(1)
@@ -70,6 +70,21 @@
     {
     }
 
+    explicit TextRun(const String& s)
+        : TextRun(StringView(s))
+    {
+    }
+
+    TextRun(const LChar* c, unsigned len)
+        : TextRun(StringView(c, len))
+    {
+    }
+
+    TextRun(const UChar* c, unsigned len)
+        : TextRun(StringView(c, len))
+    {
+    }
+
     TextRun subRun(unsigned startOffset, unsigned length) const
     {
         ASSERT_WITH_SECURITY_IMPLICATION(startOffset < m_text.length());

Modified: trunk/Source/WebCore/platform/mac/DragImageMac.mm (184002 => 184003)


--- trunk/Source/WebCore/platform/mac/DragImageMac.mm	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/platform/mac/DragImageMac.mm	2015-05-08 19:01:03 UTC (rev 184003)
@@ -192,7 +192,7 @@
     
     if (canUseFastRenderer(buffer.data(), length)) {
         FontCascade webCoreFont(FontPlatformData(reinterpret_cast<CTFontRef>(font), [font pointSize]));
-        TextRun run(StringView(buffer.data(), length));
+        TextRun run(buffer.data(), length);
         run.disableRoundingHacks();
         return webCoreFont.width(run);
     }
@@ -224,7 +224,7 @@
             CGContextScaleCTM(cgContext, 1, -1);
             
         FontCascade webCoreFont(FontPlatformData(reinterpret_cast<CTFontRef>(font), [font pointSize]), Antialiased);
-        TextRun run(StringView(buffer.data(), length));
+        TextRun run(buffer.data(), length);
         run.disableRoundingHacks();
 
         CGFloat red;

Modified: trunk/Source/WebCore/rendering/SimpleLineLayoutTextFragmentIterator.cpp (184002 => 184003)


--- trunk/Source/WebCore/rendering/SimpleLineLayoutTextFragmentIterator.cpp	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/rendering/SimpleLineLayoutTextFragmentIterator.cpp	2015-05-08 19:01:03 UTC (rev 184003)
@@ -40,7 +40,7 @@
     , preserveNewline(style.preserveNewline())
     , wrapLines(style.autoWrap())
     , breakWordOnOverflow(style.overflowWrap() == BreakOverflowWrap && (wrapLines || preserveNewline))
-    , spaceWidth(font.width(TextRun(StringView(&space, 1))))
+    , spaceWidth(font.width(TextRun(&space, 1)))
     , tabWidth(collapseWhitespace ? 0 : style.tabSize())
     , locale(style.locale())
 {
@@ -197,7 +197,7 @@
     bool measureWithEndSpace = m_style.collapseWhitespace && segmentTo < segment.text.length() && segment.text[segmentTo] == ' ';
     if (measureWithEndSpace)
         ++segmentTo;
-    TextRun run(StringView(segment.text.substring(segmentFrom, segmentTo - segmentFrom)));
+    TextRun run(segment.text.characters<CharacterType>() + segmentFrom, segmentTo - segmentFrom);
     run.setXPos(xPosition);
     run.setTabSize(!!m_style.tabWidth, m_style.tabWidth);
     float width = m_style.font.width(run);

Modified: trunk/Source/WebCore/rendering/TextPainter.cpp (184002 => 184003)


--- trunk/Source/WebCore/rendering/TextPainter.cpp	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebCore/rendering/TextPainter.cpp	2015-05-08 19:01:03 UTC (rev 184003)
@@ -170,7 +170,7 @@
         if (!m_emphasisMark.isEmpty()) {
             updateGraphicsContext(m_context, m_textPaintStyle, UseEmphasisMarkColor);
 
-            static NeverDestroyed<TextRun> objectReplacementCharacterTextRun(StringView(&objectReplacementCharacter, 1));
+            static NeverDestroyed<TextRun> objectReplacementCharacterTextRun(&objectReplacementCharacter, 1);
             TextRun& emphasisMarkTextRun = m_combinedText ? objectReplacementCharacterTextRun.get() : m_textRun;
             FloatPoint emphasisMarkTextOrigin = m_combinedText ? FloatPoint(boxOrigin.x() + m_boxRect.width() / 2, boxOrigin.y() + m_font.fontMetrics().ascent()) : m_textOrigin;
             if (m_combinedText)
@@ -196,7 +196,7 @@
         if (!m_emphasisMark.isEmpty()) {
             updateGraphicsContext(m_context, m_selectionPaintStyle, UseEmphasisMarkColor);
 
-            DEPRECATED_DEFINE_STATIC_LOCAL(TextRun, objectReplacementCharacterTextRun, (StringView(&objectReplacementCharacter, 1)));
+            DEPRECATED_DEFINE_STATIC_LOCAL(TextRun, objectReplacementCharacterTextRun, (&objectReplacementCharacter, 1));
             TextRun& emphasisMarkTextRun = m_combinedText ? objectReplacementCharacterTextRun : m_textRun;
             FloatPoint emphasisMarkTextOrigin = m_combinedText ? FloatPoint(boxOrigin.x() + m_boxRect.width() / 2, boxOrigin.y() + m_font.fontMetrics().ascent()) : m_textOrigin;
             if (m_combinedText)

Modified: trunk/Source/WebKit/mac/ChangeLog (184002 => 184003)


--- trunk/Source/WebKit/mac/ChangeLog	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebKit/mac/ChangeLog	2015-05-08 19:01:03 UTC (rev 184003)
@@ -1,3 +1,16 @@
+2015-05-08  Commit Queue  <[email protected]>
+
+        Unreviewed, rolling out r183996.
+        https://bugs.webkit.org/show_bug.cgi?id=144806
+
+        ASan detected use-after free (Requested by ap on #webkit).
+
+        Reverted changeset:
+
+        "Remove convenience constructors for TextRun"
+        https://bugs.webkit.org/show_bug.cgi?id=144752
+        http://trac.webkit.org/changeset/183996
+
 2015-05-08  Myles C. Maxfield  <[email protected]>
 
         Remove convenience constructors for TextRun

Modified: trunk/Source/WebKit/mac/Misc/WebKitNSStringExtras.mm (184002 => 184003)


--- trunk/Source/WebKit/mac/Misc/WebKitNSStringExtras.mm	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Source/WebKit/mac/Misc/WebKitNSStringExtras.mm	2015-05-08 19:01:03 UTC (rev 184003)
@@ -93,7 +93,7 @@
             CGContextScaleCTM(cgContext, 1, -1);
 
         FontCascade webCoreFont(FontPlatformData(reinterpret_cast<CTFontRef>(font), [font pointSize]), fontSmoothingIsAllowed ? AutoSmoothing : Antialiased);
-        TextRun run(StringView(buffer.data(), length));
+        TextRun run(buffer.data(), length);
         run.disableRoundingHacks();
 
         CGFloat red;
@@ -139,7 +139,7 @@
 
     if (canUseFastRenderer(buffer.data(), length)) {
         FontCascade webCoreFont(FontPlatformData(reinterpret_cast<CTFontRef>(font), [font pointSize]));
-        TextRun run(StringView(buffer.data(), length));
+        TextRun run(buffer.data(), length);
         run.disableRoundingHacks();
         return webCoreFont.width(run);
     }

Modified: trunk/Tools/ChangeLog (184002 => 184003)


--- trunk/Tools/ChangeLog	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Tools/ChangeLog	2015-05-08 19:01:03 UTC (rev 184003)
@@ -1,3 +1,16 @@
+2015-05-08  Commit Queue  <[email protected]>
+
+        Unreviewed, rolling out r183996.
+        https://bugs.webkit.org/show_bug.cgi?id=144806
+
+        ASan detected use-after free (Requested by ap on #webkit).
+
+        Reverted changeset:
+
+        "Remove convenience constructors for TextRun"
+        https://bugs.webkit.org/show_bug.cgi?id=144752
+        http://trac.webkit.org/changeset/183996
+
 2015-05-08  Myles C. Maxfield  <[email protected]>
 
         Remove convenience constructors for TextRun

Modified: trunk/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp (184002 => 184003)


--- trunk/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp	2015-05-08 18:59:31 UTC (rev 184002)
+++ trunk/Tools/TestWebKitAPI/Tests/WTF/StringView.cpp	2015-05-08 19:01:03 UTC (rev 184003)
@@ -697,23 +697,4 @@
     EXPECT_FALSE(referenceUTF8.endsWithIgnoringASCIICase(reference));
 }
 
-TEST(WTF, StringView8Bit)
-{
-    StringView nullView;
-    StringView emptyView = StringView::empty();
-    EXPECT_TRUE(StringView().is8Bit());
-    EXPECT_TRUE(StringView::empty().is8Bit());
-
-    LChar* lcharPtr = nullptr;
-    UChar* ucharPtr = nullptr;
-    EXPECT_TRUE(StringView(lcharPtr, 0).is8Bit());
-    EXPECT_FALSE(StringView(ucharPtr, 0).is8Bit());
-
-    EXPECT_TRUE(StringView(String(lcharPtr, 0)).is8Bit());
-    EXPECT_TRUE(StringView(String(ucharPtr, 0)).is8Bit());
-
-    EXPECT_TRUE(StringView(String().impl()).is8Bit());
-    EXPECT_TRUE(StringView(emptyString().impl()).is8Bit());
-}
-
 } // namespace TestWebKitAPI
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